Why the clinic needs to know
Harrogate and District NHS Foundation Trust’s surgery advice states that marijuana use and anaesthesia both affect the central nervous system and may change anaesthetic medication needs. Even where a hair transplant uses local anaesthetic rather than general anaesthetic, the medical team still needs to understand anxiety, sedation, blood pressure, heart rate, nausea, pain response and medication interactions. Disclosure is not about moral judgement. It is about avoiding a procedure-day surprise that affects safety, consent or aftercare.
